How many movies have Tatsuo Wakabayashi and Tomoyuki Iwasaki collaborated on?

They have worked on 1 movie together! Their first movie together was 隠密くノ一忍法帳 餓鬼姉妹 (2005) and was their highest rated movie together. They have not worked together since 隠密くノ一忍法帳 餓鬼姉妹 (2005).